28417

Appears in sequences

• Number of Hamiltonian paths in a 5 X n grid starting at the lower left corner and finishing in the upper right corner.at n=9A014584
• a(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 0, a(1) = 2, a(2) = 1.at n=18A020992
• Multiplicity of irreducible character IRR2 of Monster simple group in n-th head character.at n=34A055771
• Sum of the emergent parts of the partitions of n.at n=29A182709
• Number of partitions of n with difference 7 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=41A242698
• Number of ballot sequences of length n having largest descent 7.at n=5A244203
• Quasi-Carmichael numbers to exactly two bases.at n=39A257752
• a(n) = (n^2 - n + 1)*(n^2 + n - 1).at n=12A257925
• Numbers such that the sum of the reverse of their aliquot parts is equal to the reverse of the sum of their aliquot parts.at n=33A278948
• Number of Hamiltonian paths in a 9 X n grid starting at the lower left corner and finishing in the upper right corner.at n=4A333584
• For 1<=x<=n, 1<=y<=n, write gcd(x,y) = u*x+v*y with u,v minimal; a(n) = sum of the values of u^2+v^2.at n=28A345434
• Numbers k for which A276085(k) is a multiple of 3125, where A276085 is fully additive with a(p) = p#/p.at n=9A377878